We provide you guys with real expos without any payment. It will 100% free .

To get biology expo all you have to do is to login for security reasons and keep refreshing this page for updates.

We wish you guys success.

4ai

I) calyx
II) corolla 
III) androecium
Iv) gynoecium

4Aii
I) calyx--5
II)  corolla --5
III) androecium--5
Iv) Gynoecium---1

4bi) It is unisexual 
4bii) it has both male and female  sexual  organ
4cI) it is bilateral 
4cii)If the specIman Is cut along it's axis  into two, they will become identical  halves 
4D) specimen k-->insect 
     Specimen L--> wind

No2a)

i) C-fish
D-Rat
E-Dicotyledonous
No2aii) They are organs for gaseous exchange
No2aiii) 
1) Presence of gill filament for gaseous exchange
2) Presence of gill raker for protection.
3) Presence of gill arch which bears the filament
No2bi)
1) Presence of thin large area 
2) Presence of moist surface area 
No2bii)
1) C has filament. D does not
2) C has racker. D does not
3) C Thicker. D is thinner.

1c):

1. A there is presence of bristle, while in B there is Absent of  bristle
2. A there is Presence of Rudder while in B there is Absent of Rudder
3. A there is Presence of trachea while in B there is Presence of spiracle
4. A there is Presence of antenna in there is Absent of Antenna
1cii):
1. A and B has segmented bodies
2. A and B has alimentary canals
3. A and B has head.